CN102843735B - Cell switching method and system - Google Patents
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- CN102843735B CN102843735B CN201110167530.1A CN201110167530A CN102843735B CN 102843735 B CN102843735 B CN 102843735B CN 201110167530 A CN201110167530 A CN 201110167530A CN 102843735 B CN102843735 B CN 102843735B
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- 238000010295 mobile communication Methods 0.000 abstract 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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Abstract
The invention provides a kind of cell switching method and system.It is related to moving communicating field；Solve the problems, such as that MS switchings influence user perceptibility.This method includes：Base station controller inquires about the channels of neighboring areas interference information of local maintenance when needing to indicate that mobile station switches from current service cell to adjacent area；For the base station controller from each adjacent area of the serving cell, the channel distribution for selecting interference fringe rank relatively low gives the mobile station；The base station controller indicates that the mobile station switches over to the channel distributed for it.Technical scheme provided by the invention is applied to mobile communications network, realizes the cell switching based on interference.
Description
Technical field
The present invention relates to moving communicating field, more particularly to a kind of cell switching method and system.
Background technology
One maximum feature of GSM, it is exactly that user can obtain normal network service on the move.And
Handoff technique is to ensure that user obtains a key technology of high network quality service in moving process.
Existing scheme is：Mobile station (MS) monitoring system message in idle or communication process, obtain network side and issue
The information such as BA tables.Hereafter, MS utilizes the information of adjacent cells indicated in idle frame moment searching system message, to corresponding adjacent area
Frequency correction channel (FCCH) synchronizes channel (SCH) decoding, and combines the adjacent area level measured and pass through measurement report
Form reports base station controller (iBSC or BSC).IBSC is according to the strong and weak sequence choosing of reporting neighboring cell broadcast channel (BCCH) level
Go out most suitable cell and notify MS to switch over.
However, the adjacent area frequency point information that either network side issues, or MS utilize the adjacent area letter of idle frame moment search
Breath, is only adjacent area BCCH frequency level power information.Under the more and more closer present situation of channeling, each channeling cluster
Area coverage is less and less, and the frequency configuration of neighboring interval even more happens occasionally for the phenomenon with frequency.It is unavoidable to be,
Under current switching method pattern, although making MS cut a more preferable cell of covering, probably due to distributing to MS's
There is larger interference in adjacent area Traffic Channel (TCH), cause MS that frequent switching even call drop occurs, so as to have a strong impact on that user feels
Degree of knowing.
The content of the invention
The invention provides a kind of cell switching method and system, solves the problems, such as that MS switchings influence user perceptibility.
A kind of cell switching method, including：
Base station controller inquires about the neighbour of local maintenance when needing to indicate that mobile station switches from current service cell to adjacent area
Area's channel disturbance information；
The base station controller from each adjacent area of the serving cell, give by the channel distribution for selecting interference fringe rank relatively low
The mobile station；
The base station controller indicates that the mobile station switches over to the channel distributed for it.
Preferably, the base station controller selects the relatively low letter of interference fringe rank from each adjacent area of the serving cell
The mobile station is distributed in road to be included：
The base station controller obtains interference fringe rank from wireless operation maintenance center and matched somebody with somebody with channel assignment priority relation
Put table, it is corresponding that the interference fringe rank with the list item of channel assignment priority relation allocation list have recorded interference fringe level range
Channel assignment priority value, channel assignment priority value corresponding to the lower channel of interference fringe rank are higher；
The base station controller disturbs information according to the channels of neighboring areas of local maintenance, compares the interference fringe rank and letter
Road distributes priority relationship allocation list, determines channel assignment priority corresponding to each channels of neighboring areas；
The base station controller presses the order of each adjacent area BCCH level powers of the serving cell from high to low, to each neighbour
Area is ranked up；
The base station controller selects the higher channel distribution of channel assignment priority value from more forward adjacent area of sorting
To the mobile station.
Preferably, the base station controller is when needing to indicate that mobile station switches from current service cell to adjacent area, inquiry
Before the step of channels of neighboring areas interference information of local maintenance, in addition to：
The base station controller receives the instruction for starting interference fringe and judging that the wireless operation maintenance center issues, at this
Channel assignment priority thresholding and switch parameter are carried in instruction, the switch parameter is used to indicate the base station controller
Start interference fringe to judge.
Preferably, the base station controller selects the higher letter of channel assignment priority value from more forward adjacent area of sorting
The mobile station is distributed in road to be included：
The base station controller is sequentially checked in each adjacent area is higher than the channel distribution with the presence or absence of channel assignment priority
The channel of priority threshold；
When detecting the presence of the adjacent area for the channel that channel assignment priority is higher than the channel assignment priority thresholding, from
Channel assignment priority value highest channel distribution is selected to give the mobile station in the adjacent area.
Preferably, the base station controller is sequentially checked in each adjacent area is higher than the letter with the presence or absence of channel assignment priority
Road was distributed after the step of channel of priority threshold, in addition to：
When being higher than the channel of the channel assignment priority thresholding in the absence of channel assignment priority in whole adjacent areas, from
Selection channel assignment priority value highest channel distribution gives the mobile station in the adjacent area of sequence first.
Preferably, above-mentioned cell switching method also includes：
Established by the wireless operation maintenance center and safeguard that interference fringe rank configures with channel assignment priority relation
Table, and according to serving cell and adjacent area wireless quality, channel assignment priority thresholding is set.
Preferably, above-mentioned cell switching method also includes：
The base station controller collects the interference information that BTS is reported, according to the interference information in local maintenance
The channels of neighboring areas interference information of serving cell, specially update the channels of neighboring areas interference information of free time and empty activation channel
Channels of neighboring areas interference information.
Preferably, above-mentioned cell switching method also includes：
When the mobile station needs to carry out retrospective switching, the base station controller directly indicate the mobile station to
Any channel in BCCH level power highest cells switches over.
Present invention also offers a kind of cell handover system, including base station controller；
The base station controller, needing to indicate that mobile station switches from current service cell to adjacent area for base station controller
When, inquire about local maintenance channels of neighboring areas interference information, from each adjacent area of the serving cell, select interference fringe rank compared with
Low channel distribution gives the mobile station, and indicates that the mobile station switches over to the channel distributed for it.
Preferably, above-mentioned cell handover system also includes wireless operation maintenance center；
The wireless operation maintenance center, for establishing and safeguarding that interference fringe rank configures with channel assignment priority relation
Table, and according to serving cell and adjacent area wireless quality, channel assignment priority thresholding is set, and is issued to the base station controller
Start the instruction that interference fringe judges, channel assignment priority thresholding is carried in the instruction；
The base station controller, it is additionally operable to obtain interference fringe rank and channel assignment priority from wireless operation maintenance center
Relation allocation list, the interference fringe rank and the list item of channel assignment priority relation allocation list have recorded interference fringe level range
Corresponding channel assignment priority value, channel assignment priority value corresponding to the lower channel of interference fringe rank are higher.
The invention provides a kind of cell switching method and system, base station controller is needing to indicate mobile station from current clothes
Business cell to adjacent area switch when, inquire about local maintenance channels of neighboring areas disturb information, from each adjacent area of the serving cell,
The relatively low channel distribution of selection interference fringe rank gives the mobile station, then indicates that the mobile station is entered to the channel distributed for it
Row switching, channel disturbance is taken into full account when indicating MS switchings, has realized the MS cells switching ensured under the premise of quality of service,
Solve the problems, such as that MS switchings influence user perceptibility.
Brief description of the drawings
Fig. 1 is a kind of flow chart for cell switching method that embodiments of the invention one provide；
Fig. 2 is the particular flow sheet of step 104 in Fig. 1；
Fig. 3 is the modular structured flowchart of a kind of cell handover system that embodiments of the invention two provide；
Fig. 4 is the flow chart that the cell handover system in embodiments of the invention two with reference to shown in Fig. 3 is completed to switch.
Embodiment
The adjacent area frequency point information that either network side issues, or MS utilize the neighboring BS information of idle frame moment search,
Only it is adjacent area BCCH frequency level power information, without TCH disturbed condition information, have ignored the switching target TCH for distributing to MS
Disturbed condition.At the same time, under the more and more closer present situation of channeling, the area coverage of each channeling cluster is got over
Next smaller, the frequency configuration of neighboring interval even more happens occasionally for the phenomenon with frequency.It is unavoidable to be, in current switching method mould
Under formula, although making MS cut a more preferable cell of covering, probably larger do be present due to distributing to MS TCH
Disturb, cause MS that frequent switching even call drop occurs, so as to have a strong impact on user perceptibility.
In order to solve the above problems, the embodiment provides a kind of cell switching method and system.Hereinafter will
Embodiments of the invention are described in detail with reference to accompanying drawing.It should be noted that in the case where not conflicting, in the application
Feature in embodiment and embodiment can be mutually combined.
First with reference to accompanying drawing, embodiments of the invention one are illustrated.
The embodiments of the invention provide a kind of cell switching method, based on switching destination channel interference information, evades
There is the switching destination channel of interference in distribution mobile phone incision, switch decision reasonability accuracy is effectively improved, certain
Frequent switching number, and switching number of dropped calls are reduced in degree, improves the indexs such as handover success rate, improves user's perception
Degree.
Base station controller involved by the embodiment of the present invention can be iBSC or BSC, either iBSC or BSC, use this hair
The principle that the cell switching method that bright embodiment is provided completes switching is all identical, therefore the embodiment of the present invention is only entered by taking BSC as an example
Row explanation.Using the cell switching method complete switching flow as shown in figure 1, including：
Step 101, established by wireless operation maintenance center (OMCR) and safeguard that interference fringe rank and channel distribution are preferential
Level relation allocation list, and according to serving cell and adjacent area wireless quality, channel assignment priority thresholding is set；
In the embodiment of the present invention, OMCR safeguards according to the network planning is based on interference fringe switch decision parameter information, is stored in
Interference fringe rank and channel assignment priority relation allocation list (such as it will be set as channel distribution high priority below 2 grades of interference fringe,
2 grades to 4 grades are arranged to high medium priority, and 4 grades of arrangement above are low priority) in, the interference fringe rank and channel distribution are excellent
The list item of first level relation allocation list have recorded channel assignment priority value corresponding to interference fringe level range, and interference fringe rank is lower
Channel corresponding to channel assignment priority value it is higher.
Preferably, can also be small according to servicing in order to efficiently filter out suitable adjacent area and channel from multiple adjacent areas
Area and adjacent area wireless quality set channel assignment priority thresholding, for example, when wireless quality is preferable, by channel assignment priority
Thresholding sets higher (channel as only distributed high priority).
Preferably, this step function can set interference fringe switch decision maintenance module to realize by increasing in OMCR.
Step 102, BSC receive the instruction for starting interference fringe and judging that the OMCR is issued, and letter is carried in the instruction
Road distributes priority threshold；
The switch whether enabled according to interference fringe judgement switching is configured with the embodiment of the present invention, in OMCR, when the switch
During opening, OMCR to BSC send start interference fringe judge instruction, carried in the instruction channel assignment priority thresholding with
And by interference fringe switching target small area channel priority threshold parameter and enable interference fringe judgement switch parameter be handed down to BSC.
Preferably, OMCR is not to issue switch parameter in each switching, can be issued when website adjacent area creates or changes.
Preferably, switch parameter field can be added in the site parameter configuration message that OMCR issues to BSC, in the field
In fill in switch parameter, with indicate BSC start according to interference fringe adjudicate carry out cell switching flow.
When the interference fringe decision parameter that BSC is received is opens, according to neighbor cell configuration data, the interference fringe that BTS is reported
Information real-time update is into each neighbor data table.Preferably, channels of neighboring areas interference fringe maintenance of information module can be added in BSC
Realize the function of interference fringe maintenance of information.
Preferably, it can also increase the switch decision module based on switching destination channel interference information in BSC, work as needs
During distribution switching destination channel, the switch decision module of information is disturbed according to the interference of real-time update based on switching destination channel
Band data decision distribution destination channel.
Preferably, BSC detects whether switch reasons are retrospective switching, and interference information is skipped if retrospective switching
Testing process is adjudicated, completes to switch according to switching flow of the prior art；Otherwise, carry out disturbing information judgement detection stream
Journey, it is transferred to step 103.Preferably, can be added in BSC based on switching destination channel interference information switch decision module with
Realize the function of switch decision.
Step 103, BSC inquire about local maintenance when needing to indicate that mobile station switches from current service cell to adjacent area
Channels of neighboring areas disturbs information；
In the embodiment of the present invention, BSC safeguards that channels of neighboring areas disturbs information according to the network planning.Preferably, can by
Channels of neighboring areas interference fringe maintenance of information module is added in BSC to realize the function of safeguarding that channels of neighboring areas disturbs information.
It is specific as follows to the maintaining method of channels of neighboring areas interference information：
After Channel Activation, the interference information of the channel of BSC local maintenances empties；For the channel of free time, it is corresponding
Information is disturbed periodically to be adjusted in BSC local updates, update cycle according to base station interference fringe report cycle.
Step 104, the BSC select the relatively low channel distribution of interference fringe rank from each adjacent area of the serving cell
To the mobile station；
This step it is specific as shown in Fig. 2 including：
Step 1041, the BSC obtain interference fringe rank and channel assignment priority relation allocation list from OMCR, described dry
Disturb that to have recorded the corresponding channel distribution of interference fringe level range with rank and the list item of channel assignment priority relation allocation list excellent
First level value, channel assignment priority value corresponding to the lower channel of interference fringe rank are higher；
Step 1042, the BSC according to the channels of neighboring areas of local maintenance disturb information, compare the interference fringe rank with
Channel assignment priority relation allocation list, determines channel assignment priority corresponding to each channels of neighboring areas；
According to channel disturbance band grade, adjusted with reference to the interference fringe rank on OMCR and channel assignment priority relation allocation list
Whole channel assignment priority.
Step 1043, the BSC press the order of each adjacent area BCCH level powers of the serving cell from high to low, to each
Adjacent area is ranked up；
Step 1044, the BSC select channel assignment priority value relatively low channel point from more forward adjacent area of sorting
Mobile station described in dispensing；
In this step, because the interference fringe rank correlation of channel assignment priority and channel joins, therefore can be according to channel distribution
Priority selects the junior channel distribution of interference fringe to MS.Preferably, can be by the way of Cycle Screening from multiple neighbours
Select optimal adjacent area and channel in area, concrete mode is as follows：
The base station controller is sequentially checked in each adjacent area is less than the channel distribution with the presence or absence of channel assignment priority
The channel of priority threshold；
When detecting the presence of the adjacent area for the channel that channel assignment priority is less than the channel assignment priority thresholding, from
The channel distribution for selecting channel assignment priority value minimum in the adjacent area gives the mobile station.
For example, adjacent area is referred to as the first candidate adjacent, the second candidate successively according to sequence cis-position after being ranked up to adjacent area
Adjacent area ..., N candidate adjacents.According to interference fringe rank and channel assignment priority relation allocation list and channels of neighboring areas interference fringe
Information, judge whether there is incision channel to be allocated to be less than channel assignment priority in the first candidate adjacent, if so, then small from this
Area selects the channel of a highest priority to switch over distribution；Otherwise, the second candidate adjacent channel is repeated above-mentioned to sentence
Certainly, the like.If it is less than channel assignment priority thresholding without incision channel to be allocated in all candidate adjacents, from the
The channel of a highest priority is selected to switch over distribution in one candidate adjacent.
Step 105, the base station controller indicate that the mobile station switches over to the channel distributed for it.
The embodiments of the invention provide a kind of cell switching method, BSC is needing to indicate mobile station from current service cell
When switching to adjacent area, the channels of neighboring areas interference information of local maintenance is inquired about, from each adjacent area of the serving cell, selection is dry
Disturb with the relatively low channel distribution of rank to the mobile station, then indicate that the mobile station is cut to the channel distributed for it
Change, channel disturbance has been taken into full account when indicating MS switchings, realize the MS cells switching ensured under the premise of quality of service, solve
The problem of MS switchings influence user perceptibility.The judgment condition of information is disturbed based on switching destination channel by adding, it is excellent
Change switch decision flow so that BSC can initiative recognition switching target small area channel disturbance situation, prevent to disturbing larger quality
Bad channels of neighboring areas initiates switching, can effectively lift network service quality, lifts user perceptibility.
Below in conjunction with the accompanying drawings, embodiments of the invention two are illustrated.
The embodiments of the invention provide a kind of cell handover system based on interference fringe rank, including BSC；
The BSC, for BSC when needing to indicate that mobile station switches from current service cell to adjacent area, inquire about local dimension
The channels of neighboring areas interference information of shield, from each adjacent area of the serving cell, selects the relatively low channel distribution of interference fringe rank
To the mobile station, and indicate that the mobile station switches over to the channel distributed for it.
Preferably, the system also includes OMCR；
The OMCR, for establishing and safeguarding interference fringe rank and channel assignment priority relation allocation list, and according to clothes
Cell of being engaged in and adjacent area wireless quality, channel assignment priority thresholding is set, and the finger for starting interference fringe and judging is issued to the BSC
Show, channel assignment priority thresholding is carried in the instruction；
The BSC, it is additionally operable to obtain interference fringe rank and channel assignment priority relation allocation list, the interference from OMCR
It is preferential that the corresponding channel distribution of interference fringe level range is have recorded with rank and the list item of channel assignment priority relation allocation list
Level value, channel assignment priority value corresponding to the lower channel of interference fringe rank are higher.
Preferably, module can also be integrated in by the cell handover system modularization that embodiments of the invention provide
In OMCR and BSC, to complete corresponding function.Modular cell handover system structure is as shown in figure 3, OMCR increase interference fringes are cut
Judgement maintenance module is changed, the module is safeguarded according to the network planning is based on interference fringe switch decision parameter information.Including interference fringe level
Not with channel assignment priority relation allocation list, channel assignment priority is configured to 5 grades by optimal implementation suggestion, and (1 grade can represent
It is best), the thresholding is arranged to 3 by channel assignment priority thresholding, optimal implementation suggestion.
BSC increases channels of neighboring areas interference fringe maintenance of information module.The module safeguards that channels of neighboring areas disturbs according to the network planning
Information.In addition, BSC also needs switch decision module of the increase based on switching destination channel interference information, the module receives base
The interference fringe data that station reports, and information, judgement MS switching destination channels are disturbed according to channels of neighboring areas.
Fig. 4 describes the hand-off process flow chart of the switch decision module based on switching destination channel interference information,
Comprise the following steps：
Step 401, BSC receive MS measurement reports, and after the adjacent area selected and sorted of progress at this stage, detection switch reasons are
No is retrospective switching, if it is, being transferred to existing cell switching flow；Otherwise, it is transferred to step 402.
Whether step 402, the adjacent area for judging current check are last adjacent area after sequential；If it is, it is transferred to
Step 405, otherwise it is transferred to step 403.
Step 403, the channels of neighboring areas safeguarded according to channels of neighboring areas interference fringe maintenance of information module disturb information, and control is done
Disturb with the interference fringe rank that switch decision maintenance module obtains and channel assignment priority relation allocation list, judge current inspection
The channel assignment priority for whether having incision channel to be allocated in the adjacent area looked into is less than channel assignment priority thresholding.If so,
It is transferred to step 404；Otherwise, step 402 is transferred to, above-mentioned judgement is repeated to the channel of next adjacent area, the like；
Step 404, the channel of a highest priority is selected to switch over distribution from the adjacent area of current check；
If the channel assignment priority without incision channel to be allocated in step 405, all candidate adjacents is less than channel
Priority threshold is distributed, then selects the channel of a highest priority to switch over distribution from the first candidate adjacent.
Cell handover system provided in an embodiment of the present invention, a kind of cell that can be provided with embodiments of the invention are cut
The method of changing is combined, and base station controller inquires about local dimension when needing to indicate that mobile station switches from current service cell to adjacent area
The channels of neighboring areas interference information of shield, from each adjacent area of the serving cell, selects the relatively low channel distribution of interference fringe rank
To the mobile station, then indicate that the mobile station switches over to the channel distributed for it, fully examined when indicating MS switchings
Channel disturbance is considered, has realized the MS cells switching ensured under the premise of quality of service, solving MS switchings influences user perceptibility
The problem of.
One of ordinary skill in the art will appreciate that all or part of step of above-described embodiment can use computer journey
Sequence flow realizes that the computer program can be stored in a computer-readable recording medium, the computer program exists
(such as system, unit, device) performs on corresponding hardware platform, upon execution, including the step of embodiment of the method it
One or its combination.
Alternatively, all or part of step of above-described embodiment can also realize that these steps can using integrated circuit
To be fabricated to integrated circuit modules one by one respectively, or the multiple modules or step in them are fabricated to single integrated electricity
Road module is realized.So, the present invention is not restricted to any specific hardware and software combination.
Each device/functional module/functional unit in above-described embodiment can be realized using general computing device, it
Can concentrate on single computing device, can also be distributed on the network that multiple computing devices are formed.
Each device/functional module/functional unit in above-described embodiment realized in the form of software function module and as
Independent production marketing in use, can be stored in a computer read/write memory medium.Computer mentioned above
Read/write memory medium can be read-only storage, disk or CD etc..
Any one skilled in the art the invention discloses technical scope in, can readily occur in change or
Replace, should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the guarantor described in claim
Shield scope is defined.
Claims (9)
- A kind of 1. cell switching method, it is characterised in that including：Base station controller receives the instruction for starting interference fringe and judging that wireless operation maintenance center issues；Start what interference fringe judged Channel assignment priority thresholding is carried in instruction and for indicating that the base station controller starts the switch that interference fringe judges Parameter；Wherein, interference fringe level range pair is recorded in the list item of interference fringe rank and channel assignment priority relation allocation list The channel assignment priority value answered；Base station controller inquires about the adjacent area letter of local maintenance when needing to indicate that mobile station switches from current service cell to adjacent area Disturb information in road；The base station controller selects the relatively low channel distribution of interference fringe rank to described from each adjacent area of the serving cell Mobile station；The base station controller indicates that the mobile station switches over to the channel distributed for it.
- 2. cell switching method according to claim 1, it is characterised in that the base station controller is from the serving cell Each adjacent area in, select the relatively low channel distribution of interference fringe rank to include to the mobile station：The base station controller obtains interference fringe rank and channel assignment priority relation allocation list from wireless operation maintenance center, The interference fringe rank and the list item of channel assignment priority relation allocation list have recorded the corresponding channel of interference fringe level range Priority value is distributed, channel assignment priority value corresponding to the lower channel of interference fringe rank is higher；The base station controller disturbs information according to the channels of neighboring areas of local maintenance, compares the interference fringe rank and channel point With priority relationship allocation list, channel assignment priority corresponding to each channels of neighboring areas is determined；The base station controller presses the order of each adjacent area broadcast channel (BCCH) level power of the serving cell from high to low, Each adjacent area is ranked up；The base station controller selects the higher channel distribution of channel assignment priority value to institute from more forward adjacent area of sorting State mobile station.
- 3. cell switching method according to claim 2, it is characterised in that the base station controller is more forward from sorting The higher channel distribution of channel assignment priority value is selected to include to the mobile station in adjacent area：The base station controller sequentially checks preferential higher than the channel distribution with the presence or absence of channel assignment priority in each adjacent area The channel of level thresholding；When detecting the presence of the adjacent area for the channel that channel assignment priority is higher than the channel assignment priority thresholding, from the neighbour Channel assignment priority value highest channel distribution is selected to give the mobile station in area.
- 4. cell switching method according to claim 3, it is characterised in that the base station controller sequentially checks each adjacent area In with the presence or absence of channel assignment priority be higher than the channel assignment priority thresholding channel the step of after, in addition to：When being higher than the channel of the channel assignment priority thresholding in the absence of channel assignment priority in whole adjacent areas, from sequence Channel assignment priority value highest channel distribution is selected to give the mobile station in first adjacent area.
- 5. cell switching method according to claim 3, it is characterised in that this method also includes：Established by the wireless operation maintenance center and safeguard interference fringe rank and channel assignment priority relation allocation list, and According to serving cell and adjacent area wireless quality, channel assignment priority thresholding is set.
- 6. cell switching method according to claim 1, it is characterised in that this method also includes：The base station controller collects the interference information that BTS is reported, the service according to the interference information in local maintenance The channels of neighboring areas interference information of cell, specially update the channels of neighboring areas interference information of free time and empty the neighbour of activation channel Area's channel disturbance information.
- 7. the cell switching method according to claim 1 or 3, it is characterised in that this method also includes：When the mobile station needs to carry out retrospective switching, the base station controller directly indicates the mobile station to BCCH electricity Any channel in flat power highest cell switches over.
- 8. a kind of cell handover system, it is characterised in that including base station controller；The base station controller, the instruction for starting interference fringe and judging issued for receiving wireless operation maintenance center, base station control Device processed when needing to indicate that mobile station switches from current service cell to adjacent area, take a message by the channels of neighboring areas interference for inquiring about local maintenance Breath, from each adjacent area of the serving cell, the channel distribution for selecting interference fringe rank relatively low gives the mobile station, and indicates institute Mobile station is stated to switch over to the channel distributed for it；Start in the instruction that interference fringe judges and carry channel assignment priority door Limit and the switch parameter judged for indicating the base station controller startup interference fringe；Wherein, in interference fringe rank and channel Distribute and channel assignment priority value corresponding to interference fringe level range is recorded in the list item of priority relationship allocation list.
- 9. cell handover system according to claim 8, it is characterised in that the system is also included in radio operation maintenance The heart；The wireless operation maintenance center, for establishing and safeguarding interference fringe rank and channel assignment priority relation allocation list, And according to serving cell and adjacent area wireless quality, channel assignment priority thresholding is set, and issues and open to the base station controller The instruction that dynamic interference fringe judges；The base station controller, it is additionally operable to obtain interference fringe rank and channel assignment priority relation from wireless operation maintenance center Allocation list, it is corresponding that the interference fringe rank with the list item of channel assignment priority relation allocation list have recorded interference fringe level range Channel assignment priority value, channel assignment priority value corresponding to the lower channel of interference fringe rank is higher.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110167530.1A CN102843735B (en) | 2011-06-21 | 2011-06-21 | Cell switching method and system |
| PCT/CN2012/071182 WO2012174867A1 (en) | 2011-06-21 | 2012-02-16 | Cell handover method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110167530.1A CN102843735B (en) | 2011-06-21 | 2011-06-21 | Cell switching method and system |
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| CN102843735A CN102843735A (en) | 2012-12-26 |
| CN102843735B true CN102843735B (en) | 2018-03-23 |
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| CN201110167530.1A Active CN102843735B (en) | 2011-06-21 | 2011-06-21 | Cell switching method and system |
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| CN106559804B (en) * | 2015-09-24 | 2020-05-01 | ***通信集团公司 | Inter-system measurement optimization method and device and user equipment |
| CN105578546B (en) * | 2016-01-15 | 2018-09-07 | 华信咨询设计研究院有限公司 | The adaptive LTE switching methods of sine of curstomer-oriented perception |
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| WO2012174867A1 (en) | 2012-12-27 |
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